Defining Najas in Sales and Explaining Its Ruling

Question:
May Allah reward you. This questioner, Ali Ahmad, says: What is the najas mentioned in the hadith and what is an example of that, O Shaykh, regarding najas?

Answer:
Najas is when someone increases the price of goods who does not want to buy them, but only wants to raise their value against the others. This is najas because this weakens the position of the one who wants to buy the goods, and he has no intention of buying them; rather, he bids on them only to increase the price against the others. So this is forbidden, this is forbidden, because it is an aggression and a display against the others. So one should not bid on a good except the one who wants to buy it. Do not bid against one another. If a person sells a good to someone and gives him the option for a period, then another person should not come and leave it, saying, "I am selling you something better than it." So this is not permissible.